/Engine/Source/Runtime/Slate/Public/Framework/Commands/UICommandList.h
Checks if an action is already mapped
True if an action is already mapped or false otherwise
bool IsActionMapped ( const [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< const [FUICommandInfo](API\Runtime\Slate\Framework\Commands\FUICommandInfo) > InUICommandInfo ) const